Trimming-machine



J. A. BUTLER.

TRIMMING MACHINE.

APPLICATION HLED OCT. 29. 1917.

Patented May 11, 1920.

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I. A. BUTLER.

TRIMMING MACHINE.

APPLICATION FILED OCT. 29. 1917.

1,339,807. ted ay 11, 1920.

4 SHEETS-SHEETZ.

liven/ta 7? Fumes 6.,Z3uflez I. A. BUTLER. TRlMMiNG MACHINE. APPLICATION FILED ocr. 29.1917.

Patented May 11, 1920.

4 SHEETS-SHEET 3- J. A. BUTLER.

TRIMMING MACHINE.

APPLICATION men OCT. 29. 1911.

1,339,807. n e M y11,1920.

4 SHEETSSHEET 4.

JAMES A. BUTLER, F NEEDI-IAM, MASSACHUSETTS.

TRIMMING-IVIACHINE.

Specification of Letters Patent.

Patented" May 11, 1920;

Application filed October 29, 1917. Serial No. 199,082.

To all whom it may concern:

Be it known that 1, JAMES A. BUTLER, a citizen of the United States, residing at Needham, county of Norfolk, and State of Massachusetts, have invented Improvements in Trimming-Machines, of which the followingis a specification, reference bemg had to the accompanying drawmgs, forming part thereof.

This invention has reference to improvements in machines for trimming or cutting the edge portions of webs or strips of material and particularly of strips of felt.

One of the objects of this invention is to provide a trimming machine of the nature herein described in which the portions under trimming operation may be carried or fed forward to the trimmer or trimmers coincidently with the main portion of the material.

Another object of the invention is to improve the construction of the trimmers and their carriers.

Another object. of the invention is to provide means to carry the strip cut from the main material away from the trimmer or cutter device.

Other objects of the invention will appear from the following description.

The invention consists in the novel features of construction and combination of parts hereinafter described and pointed out in the claims.

Figure 1, represents a side elevation of portions of trimming machine having the improved trimming devices and their related mechanism.

Fig. 2,,represents a sectional view of parts of the same as taken on line 22 Fig. 4:.

Fig. 3, represents a sectional 'view of parts of the machine as taken on l1ne 3-3 Fig. 1.

Fig. 4, represents a cross sectional view of parts of the machine as taken on sald line 3-3 Fig. 1 to show two trimming mechanisms and, to an extent, to illustrate the operation of the machine.

Fig. 5, represents a sectional view taken on line,-14 Fig. 3.,

Similar characters of reference designate corresponding parts throughout.

In the specific embodiment of the inven-' tion herein disclosed the invention is applied to a machine adapted to advance or carry forward a web or strip of felt or other material, usually of considerable width, from which material it is desired to cut narrower strips either for the purpose of dividing said material into a series of comparatively narrow strips or for the purpose of cutting or trimming the edgeportions of said main web or strip of material. In this cutting or trimming operation on felt or other comparatively thick material of a somewhat unstable nature adapted to drag atone point or another it is often desirable to effect an advancing movement on parts of the material adjacent the cut-. ting implement without subjecting the. main portion of the material to compression as, for instance, between feed rolls. It is also desirable in some cases to adjust the cutting appliances relative to the width ofv the material under operation. After the cutting or trimming operation it is preferred progressively to act on the marginal strip or strips to feed or move the same from the point of cutting to avoid damage to said marginal strips by the mechanism or the clogging of the mechanism by such strips or portions thereof. v

As shown in the drawings 5, 5 represent side bars or frames of a machine having the carrier belt or apron 6 mounted on rolls .7 and 8 one of which is adapted to be driven to operate said apron 6 in the direction indicated by the arrow.

Mounted on any suitable floor or base be,- low the side bars or frames 5, 5 are the brackets 9, 9 in which is journaled theshaft 10 extending transversely of said frames and having the sprockets 11 and 12 of which sprocket 11 has the drive pulley 13 and the notched disk 14 the latter adapted to be engaged by the pawl 15 which is pivotally sustained by the clamp 16 slidable inthe slot 17 of the standard 18 positioned adjacent said sprocket 11. Provision is made by means of the rod 19, pivotally connected with said paw-l 15, to lift the free end of said pawl out of engagement with the notch of disk 14: and to swing said pawl back to the engaging position, after power has been shut off, to arrest said disk.

Securely mounted on the side bars or frames 5, 5 are the standard frames. 20,20 the upper ends of which are connected by the truss or bridge member 21- of substantial construction and having the flange or way 22'- secured to saidframes 20, by means of clamps 2B, 23. In said standard frames 20, 20 is carried the shaft 24:on

which are pivotally mounted the lever arms 25, having the shaft 26 on which is journaled the roll 27' adapted to yieldingly sustain a portion of the upper reach of apron 6 and its load when the lever ends of said arms 25, 25 are suitably weighted by weights as 28.

in bearings of the standard frames 20, 20 are rotatable and slidable the shafts 29, 29 having outside said frames 20, 20 the sprockets 30, 30 which latter have keys slidably engaged in keyways of said shafts 29, 29 to permit said shafts 29, 29 to be adjusted longitudinally through said sprockets 3O 30. spi'ockets 30, 30 from the sprockets 11 and 12 by means of the sprocket chains 31, 31. Said shafts 29, 29 extend inwardly from the standard frames 20, 20 over the upper reach of the belt or apron 6 and are journaled in bearings of frame members 32, 32

which at their upper portions have the,

clamps 33, 33 slidably engaged with the flange or way 22 of bridge member 21 for adjustment along said flange or way 22 and adapted to be secured in the adjustable position. On said shafts 29, 29 are mounted the conical end members 34, 34, the collars 35, 35, the sleeves 36, 36 and 37, 37 and the belt pulleys 38, 38. Collars 35, 35 have cylindri cal peripheries of hard steel or other suitable material and are rotatable with their said shafts 29, 29. Sleeves 36, 36 are free on said shafts 29, 29 and friction sleeves 37, 37 and pulleys 38, 38 rotate with said shaft 29, 29.

From the frames 32, 32 extend the arms 39, 39 carrying at their outer ends adjustable screws as 40. From said frames 32, 32, adacent the arms 39, 39 also extend the guide frames 41, 41 having fulcrums on which the cutter levers 42, 42 are mounted to swing. At the lower portions of these levers 42, 42 are rotatably mounted the cutter disks 43, 43 which are adapted to bear against the hard peripheries of the collars 35, 35 againstwhich said cutter disks 43, 43 are yieldingly held by the action of the leaf springs as 44 mounted at the upper ends of said levers 41, 41 and having the adjustable screws as 45 hearing against the screws as 40.

Frames 32, 32 have the vertical guides 46 in which the bearing blocks 47 are slidable and in these blocks 47 of the respective frames 32, 32 are journaled the shafts 48, 48 having the friction disks 49, 49 bearing against the friction drive members 37, 37 of shafts 29, 29 and the pressure rolls 50, 50 which are positioned to bear on material passing over the rotatable sleeves 36, 36. Ina bearing at the lower portions of said frames 32, 32 are mounted the spindles 51,

51 having the rotatable belt pulleys 52, 52 carrying the belts 53, 53 the upper portions of which are sustained by the pulleys 54, 54 of the shafts 55, 55 journaled in bearings of lrovision is made to drive said the bracket arms 56, 56 which extend upwardly and outwardly from the frames 32, 32. On said shafts 55, 55 are mounted the belt pulleys 5'7, 57 to which motion is transmitted by the belts 58, 58 operating over the belt pulleys 38, 38 of the respective shafts 29, 29.

Extending from the standard frames 20, 20 are the horizontal arms 59, 59 in bearings of which are journaled shafts 60, 60 having the drive pulleys 61, 61 and the belt pulleys 62, 62 which latter carry the transverse belt 63 operating in the trough 64 which is sustained by members of said arms 59, 59 and is constituted in part by the flaring walls 65 and 66. Shafts 60, 60 extend to points above shafts 29, 29 and the pulleys 61, 61 of said shafts 60, 60 are positioned to be driven from the friction gears 67, 67 of said shafts 29, 29 through the friction disks 68, 68 and 69, 69 rotatably mounted on studs 70, 70 which extend from said standard frames 20, 20. Said shafts 60, 60 may how ever be driven in any well known manner.

In the operation of the machine, after suitable adjustment of the disk cutters 43, 43 and the parts related thereto, a piece of felt or other material A is placed upon the belt or apron 6 and marginal portions of this material A are, by hand, raised above the belt or apron 6 and are brought over the conical guard members 34, 34, between the hard disks or collars 35, 35 and the cutter disks 43, 43, and between the sleeve members 36, 36 and the pressure rolls 50, 50. These marginal portions of the material A may of course extend to the frames 32, 32 and the sleeve members 36, 36 may be considerably longer than that shown, when it is desired to cut marginal strips of greater width. The introduction of the material A between the disks 35, 35 and the rotary cutters 43, 43 is facilitated by depressing the rear ends of the cutter levers 42, 42 in order to move the cutters 43, 43 away from said hardened disks 35, 35.

After the felt or other material A has been placed in position the apron or belt 6 is operated to advance said material A to the cutting or trimming devices at a speed related to the speed at which the shafts 29, 29 are rotated. As the main or central por tion of material A advances with the belt or apron 6 the marginal portions A, A of said material are advanced by the pressure rolls 50, 50 with the result that the cutters 43, 43 act progressively to sever said marginal portions of the material from the main or central portion thereof.

After the slitting operation the marginal portions of the material, A, severed by the cutters 43, 43 are received by the belts 53, 53 and are carried by said belts to points at which they are delivered to the belt 63 by means of which said marginal portions or trimmings of material A are carried to a point of deposit.

Having thus described my invention I claim as new and desire to secure by Letters Patent.

1. A trimming machine comprising a traveling apron, a bearing frame, means providing for support and transverse adjustment of said bearing frame, a shaft journaled in said bearing frame, and having a friction sleeve, a rotatable sleeve and a collar, a shaft journaled in a yielding bearing of said bearing frame and having a friction member to be driven from said friction sleeve and a pressure roll cooperating with said rotatable sleeve, and a cutter cooperating with said collar.

2. A trimming machine comprising a traveling apron, a bearing frame, means providing for support and transverse adjustment of said bearing frame, a shaft journaled in said bearing frame and having a belt pulley and a cutter opposing collar, a cutter cooperating with said collar, a shaft j ournaled in a member of said bearing frame and having a belt pulley, a drive belt operating on said belt pulleys, and a carrier belt operated by said latter shaft.

3. A trimming machine comprising a traveling apron, a bearing frame, means providing for support and transverse adjustment of said bearing frame, a shaft journaled in said bearing frame and having a friction member, a rotatable sleeve and a cutter opposing collar, a cutter having a carrier yieldingly mounted in said bearing frame, a shaft journaled in said frame and having a friction disk to be driven from said friction member and a pressure roll to cooperate with said sleeve, a carrier belt sustained adjacent said sleeve, and means to drive said carrier belt from said first mentioned shaft.

a. A trimming machine comprising a traveling apron, a bearing frame having journaled at its. lower portion a feed shaft and a belt shaft, means providing for support and transverse adjustment of said bearing frame, a second belt shaft journaled at the upper portion of said bearing frame, a

belt carried by said belt shafts, means to drive one of said belt shafts from said feed shaft, a cutter opposing collar on said feed shaft, a cutter cooperating with said collar, and a pair of material feeding members one of which is mounted on said feed shaft.

5. A trimming machine comprising a traveling apron, a bearing frame having an arm, means providing for support and transverse adjustment of said bearing frame, a shaft journaled in said bearing frame and carrying a cutter receiving collar, a lever pivotally mounted in said bearing frame and having at one end a spring bearing on a member of said arm and at the other end a rotary cutter to cooperate With said collar, and a pair of members adjacent said collar operating to feed material thereto.

6. A trimming machine comprising a traveling apron, a bearing frame having a guide, means providing for support and transverse adjustment of said bearing frame, a block movable in said guide, a shaft journaled in said block and having a pressure roll and a friction member, a shaft journaled in said bearing frame and having a cutter opposing collar, a rotatable sleeve cooperating with said roll and a friction drive cooperating with said friction member, and a cutter diskhaving a carrier yieldingly mounted in said bearing frame, said cutter cooperating with said collar.

7. A trimming machine comprising a traveling apron, a transversely extending bridge-member, frames slidably adjustable on said bridge member and having journaled shafts extending above said apron, said shafts each having a friction member, a rotatable sleeve and a cutter opposing collar,

a cutter carried by each of said slidable frames and cooperating with its collar, a feed pressure roll rotatably mounted in each of said slidable frames and having a friction disk to be driven from said friction member, and means to drive said shafts relative to the speed of said apron whereby the marginal portions of material on said apron are advanced by said pressure rolls past the points of cuttin JAME A. BUTLER. 

